SEGA Genesis MK -1690, MK-4102 Console ONLY or With Region Free BIOS. Sega CD Model 1 MK-1690, CD Model 2 MK-4102 Console only. Reassembly & Comprehensive Testing : Once reassembled, the console undergoes rigorous testing, including 240p Test Patterns, SEGA GENESIS, CD, and 32X compatibility checks.
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